Graphical Errors on PVE Webui (9.1.6)

jsterr

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Jul 24, 2020
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Hello, on some training-vms I upgraded to PVE 9.1.6 and Im having some weird issues atm I cant track down. Im not sure if it is related to the 9.1.6 upgrade.

* Ceph -> OSD -> Global-Flags: Ceph Global Flags Show Integers "0" or "1" instead of Checkbox
** this makes it hard to use and multiple flags cant be selected at once anymore

1772035664546.png
* Host -> System -> Network: Show Integers on Autostart and Active, instead of yes/no
** No impact on usage for me at least

1772036556242.png
And something Im not sure if it is related to, since 9.1.6 some VMs (not all) do not show a display output anymore, do not show guest-agent communication anymore, although agent is enabled and installed. Also VMs are not responding anymore and stopping / starting them do not bring back the console again.

1772035812704.png

Code:
root@pve-5:~# qm config 1800
agent: 1,fstrim_cloned_disks=1
bios: ovmf
boot: order=scsi0;ide2;net0
cores: 2
cpu: x86-64-v3
efidisk0: vm_nvme:vm-1800-disk-1,efitype=4m,ms-cert=2023w,pre-enrolled-keys=1,size=528K
hotplug: disk,network,usb,memory,cpu
ide2: nfs:iso/debian-13-net-h.iso,media=cdrom,size=754M
machine: q35
memory: 2048
meta: creation-qemu=10.1.2,ctime=1771855722
name: debian
net0: virtio=BC:24:11:1B:64:10,bridge=vmbr0,firewall=1
numa: 1
onboot: 1
ostype: l26
scsi0: vm_nvme:vm-1800-disk-0,discard=on,iothread=1,size=20G,ssd=1
scsihw: virtio-scsi-single
smbios1: uuid=39c2f151-060e-4ec6-970d-a7fb500640f5
sockets: 1
vcpus: 1
vmgenid: 86695a8a-7970-420e-925a-0abf5f884b65

not all vms have this issue, but multiple. Migrating the vm to another host, does not change anything. stopping and starting it also does not. Downgrading pve-qemu-kvm:amd64 (10.1.2-6, 10.1.2-7) to 10.1.2-6 again, does also not change the problem.

Maybe its something else?

Edit 1: This are the apt changes from 9.1.5 to 9.1.6 for me:


Code:
Start-Date: 2026-02-25  11:17:21
Commandline: apt-get dist-upgrade
Upgrade: proxmox-widget-toolkit:amd64 (5.1.5, 5.1.6), pve-firmware:amd64 (3.17-2, 3.18-1), pve-qemu-kvm:amd64 (10.1.2-6, 10.1.2-7), proxmox-backup-file-restore:amd64 (4.1.2-1, 4.1.4-1), pve-container:amd64 (6.1.1, 6.1.2), proxmox-backup-client:amd64 (4.1.2-1, 4.1.4-1), pve-manager:amd64 (9.1.5, 9.1.6)
End-Date: 2026-02-25  11:17:45

Reverting all those packages with allow-downgrade does "fix" the integer thing (looks like its intended) but some of my vms are still black and unresponsive. Its all just demo enviroment and nested pve-vms.

Edit 2: Might be related to: https://bugzilla.proxmox.com/show_bug.cgi?id=3726 or https://bugzilla.proxmox.com/show_bug.cgi?id=3825 but changing to i440fx and removing hotplug did not help. The strange thing is, that the vm did work normally before and suddenly stopped giving a display output.

Edit 3: Did remove efi disk, added it again and added efi boot entries via vm-bios - now its working again with EFI, Q35 (VM 1804)

Edit 4: On VM 1800 (config from above no changes) it did work by just removing the efi disk and adding it again (without re-setting the efi-string in the bios) - so it seems like its related to UEFI/EFI Disk?
 
Last edited:
Hello, on some training-vms I upgraded to PVE 9.1.6 and Im having some weird issues
I can confirm this.

My virtual testcluster was on 9.1.5 and is on 9.1.6 now. I did upgrade without reboots. My logged in session (Linux/Librewolf) shows "0" instead of checkboxes as you describe.

In-browser logout/login and/or shift-reload is not sufficient. Will reboot the cluster now...

...but a reboot does also not help. Another, fresh browser instance (still Librewolf) shows the same misbehavior.

That's all I can tell for now.
 
Last edited:
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I can confirm this.

My virtual testcluster was on 9.1.5 and is on 9.1.6 now. I did upgrade without reboots. My logged in session (Linux/Librewolf) shows "0" instead of checkboxes as you describe.

In-browser logout/login and/or shift-reload is not sufficient. Will reboot the cluster now...

...but a reboot does also not help. Another, fresh browser instance (still Librewolf) shows the same misbehavior.

That's all I can tell for now.
Does VM console work when you check 4-6 Machines ?